virus reported clamav

Please can you tell me if the following :
PUA.HTML
PUA.JS.Xored
PUA.HTML.Crypt
PUA.Script.Packed-1
are real viruses or false positives?
I have about 12 files in total giving one of the above- one is even a Ubuntu help page on filers in 12-04, the other are
tutorials on autotools by Calcote. Tried virusscan and only clamav report these as viruses. I have been using Ubuntu since 7-10 and this is the first time I have ever had a virus reported. I like to be on the safe side.

~-> sudo add-apt-repository ppa:ubuntu-clamav/ppa
[sudo] password for david:
You are about to add the following PPA to your system:
Test versions of clamav and its dependencies to support backporting these are not recommended for end-user use. Please indicate test results here: